Myeon w



(No Model.)

.M W. ELLIOTT- DIE PoR DRAWING WATCH SPRINGS.

M01/ewes: f' d? f UNITED STATES PATENT OEEICE.

MYRON W. ELLIOTT, OF ELGIN, ILLINOIS, ASSIGNOR TO THE ELLIOTT 8a MOSELEY WATCH SPRING COMPANY, OF SAME PLACE.

j DIE FOR DRAWING WATCH-SPRINGS.

SPECIFICATION forming part of Letters Patent No. 333,735, dated January 5, 1886.

Application filed Septemberl, 1885. Serial No. 177,439. (No model.)

To all whom it may concern:

Be it known that I., MYRON W. ELLIOTT. of Elgin, in the county of Kane and State of Ill'inois, have invented a new, useful, and Improved Device for Finishing VVatch-Springs,

of which the following is a description, reference being had to the accompanying drawings, in which- Figure 1 is arearview of said device. Fig. 10 2 is a front viev'vof the same. Fig. 3 is a central vertical sectional view thereof, with reels for holding and drawing the ribbon of metal. Fig. 4 is a horizontal sectional plan view in detail, taken upon the line a: w, Fig. 1. Fig. 5 is a side view of a middle portion of the frame, showing a removable cap for use in the adjustment'of 'a liorzontals'lid." Eig. 6` isa detail View of portions of the movable vertical and horizontal slides detached from their I 2Q bearings; and Fig. 7 shows a face Aand side view, respectively,^of the dies attached to said' horizontal slides. v

Like letters of reference designate corresponding parts in the various gures. The purpose of my invention yis to provide a device or mechanism whereby ribbons of metal, and especially the inainsprings of watches, may be rendered smooth and uniform in'width and thickness upon being passed A through the same, while at the same time a greater tensile strength, as well as a perfect iinish, may be imparted thereto. Said device consists of a series of adjustable dies formed, preferably, from diamonds-or other gems of similar lhardness and capable of receiving a' high`polis`h, said dies being constructed, arranged, and adjusted substantially in the manner hereinafter more, particularly described, and denitely pointeddut in the claims.

V In the drawings,-A represents the frameof ,saidv device, which' consists, preferably, of a single block of stoet-having vertical and horizontal grooves planed therein for the reception of thedie-holding slides, as hereinafter f l described'. Acentral vertical slot (indi-cated by. the outermost dotted lines in Figs. -1 and 2) is extended from the top to the middle of said y frame, Ainto which is inserted, anV adjustable guideblock or subframe,B, (also indicated in l 5o' dotted lines in said figures, and shown in Figs.

can be so moved, the same describinga slight 6o I arc, of which. b is the center'.l By inserting screws'horizontallyinto the block A, as indi- Y cated in dotted lines ataa, Figs. land 2, and also shown in Fig. 5. the .lower end of said block B maybe adjusted laterally with the nicestgaccuracv. Said,l block Bis provided` 'with' a'suitable-lbt 'or' groove, iinto which is accurately fitted a' slide, C, Figs. 3, .4, and 6, vand likewise shown in dotted'lines in Figs.

1 and 2. In a like vertical groove, extend- 7o ing from the middle to the lower end of the block A, I place a similar slide, O',which should be carefully tted, so as to admit of no lateral play. Plates D D are attached to the respective ends of the block A by means of screws d d, Figs. 1 and 2, which said plates are preferablyl provided with ref enforcing bossesA or shoulders d d', forming a part thereof, through which are inserted -adjusting or j set screws d d, the former of which is pro- 8o vided. with -anenlarged head or thu'mb-piece, upon the periphery of which is a graduated scale, d,.Fig.'-2, which is designed to be operated in conjunction with va stationarypost or indicator, d5, rigidly attached ,to the plate D. The inner ends of the screws dl d abut against the, ends of the slides C C', respectively,

vand the pitch of said screws should be very fine, in order to permit of the'4 most delicate adjustment of the slides, it being practicable 9o to so proportion said scale d4 in conjunction -with the pitch of ,saidscrew' d as to indicate a movement ofthe slide E of 'oneens-hundred thousandth of an inch. Said slides are retained in, place in their respective groovesby 9'5 means of a face-plate, a', Figs. 1, 3, and4, at- 'tached to the block A by means ofY screws a, Fig. 1, said face-plate being provided with an opening, a, Fig. 1, inthe middle and opposite the meeting ends of the 'slides 0.0'. Into said roo meeting ends of the slides C C are rigidly secured dies E E', Figs. 1, 2, and 3, and indi cated in dotted lines in Figs. 5 and 6. Said dies or slide-lacings are preferably -constructed of diamond, sapphire, ruby, chrysolite, irid ium, black carbon, topaz, corundnm, crystallized heniatite, adainantiue spar, or other like stone or material possessing great hardness, and their respective faces should be highly polished and rounded transversely, as shown in Fig. 3, while they are straight in the opposite direction, in which it is ot the utmost importancethat they should beparallel with each other. Should any slight inaccuracy in this respect occur in forming them, I am enabledto overcome it by means of the adjustable block B, which, upon turning the screws a u, may be moved laterally in one 'or the other direction until perfect accuracy is obtained and said jeweled facings are rendered exactly parallel with each other. l

Across and 'into the front of the block 6r frame A, l cut a dovetail groove, the center of which is in a plane with the pointofjuncture of the dies EE and opposite the opening a" in the plate a', into which groove l insert a single slide, F, Figs. 2 and 3, which is'iu turn provided with a corresponding groove, into which are accurately iitted horizontal slides G Gl Said slide orgrooved plate h" is perforated. opposite the meeting ends of the slides G G, which is likewiseopposite-said opening a, said plate thereby serving to give greater accuracy to the movement and to form a iii-mer support for the slidesGG, the meeting ends of which mightotherwise rest parli y against the back of the block B. Detachable plates j' f, Figs. 2 and are also secured tothe respective ends ot the plate F by-means of screwsf, Fig. 5, while the whole is retaincdwithin the frame A, and .its longitudinal movement adM justed by means of adjusting-screwsfifi, one of which 1s shown in said lastnamed gurc.

By this arrangement the slides G- G when 'adjusted to the width of a sp ring, as hereinafter'f' stated, may both be given a longitudinal movement in one or another direction without varying said adjustment, by which means thc spring or metal ribbon 'may be adjusted laterally, if desired, in its relation to'the dies E E. To the meeting endsof the slides G G, l rigidly attach diamond or othersiinilar` dies or facings, H H, each of which is provided with asemicircular or curved notch, h, (better shown in Fig. 7.) which is an` enlarged View of the face of one and the side ofthe other of saidv dies. The notch h is preferably conntersunk upon the outside, as at it', Figs. l and 7, 'and is gradually enlarged from the middle out,-4

wardly in bothdirections, substantially asindieated in the face view of said Fig. 7, the size of said notches corresponding approximately with the thickness of the mainspring'to be,

turning the reel L by means ot' the handle l,

or in an any other way, the spring K is drawn between said dies, which should be'kept continually oiled. If,upon testing the portion of the spring thus submitted to the dies, one edge is found to be thinner than the other, the defeet may be remedied by a lateral adjustment oi' the block B, as described. I preferably draw the spring K through said dies several tintes. to insure perfectunii'ormity and finish, each repetition of the operation being accompanied by a slight closing ofthe dies, the adjustment, particularly of the dies E E', being made with. great care by means of the scale d, which should provide for the utmost practical delicacy of action. It is obvious that as said dies are made in parts and detachable the respective faces thereof may be readily smoothed and polished in the event of the slightest abrasiomwhieh would not be truc of around or oblong hole out through asolid piece of material. This fact obvates the necessity for replacing said dies when so injured, while the cost of repairing the same is but nominal. Moreover, the lateral and longitudinal adjustment of said dies in the manner described enables mc to produce springs of an indefinite length, of any size desired, and of uniform thickness and width.

Upon applying a gage capable of registering one iive-thousandth oi' an inch l have been unable to detect the slightest variation, either in width or thickness, in aribbon ofsteel fifty feet iu length and finished in the manner de- (scribed, while a spring a few inches in length,

made under the old method, by means of rubbi ng upon a tlat surface with abrading matcrial, will, show the most marked inaccuracies in both of said respects. Itis wholly impractieable to produce a spring ot' uniform width and thickness by .means of appliances and methods heretofore in use. Thefaces or sides of the best springs in the market are more o1" less rounded, leaving said springs'thicker in the middle, while the variations in thickness vand wi-dthvcause--them to break more readily than they otherwise would. Said dies not only produce perfect uniformity in said metal strip, as stated, but impart a tine polish and iinish v thereto and increase the toughness and tenacity of its ber. I am enabled, therefore, 'by means of said device or apparatus to produce a watch-spring ot' a character, quality, and accuracy of forni heretofore unknown.

lt is obvious that the slides G G and C C `may be placed-in separate frames apart trom each other, "and 4the strip of metal passed y through the same, respectively, byl separate operations-without varying the essential fea- .tures of my invention; but such change would increase the cost of the product, wh-ile the results would he more or less. inferior.I It is, moreover, apparentthat said dies may be made t wholly of precious stones or other material of the description named; but this would render lfthe same unnecessarily expensive, as it is immaterial what the slides themselves are comu lposed of, so long as they are strong and dura-l a. pair of slides or-dies facedwith precious stones, `iewels, or otherequivalent stones, hard substances, ord material capable of receiving a uniform polish andqsnrface, and arranged to compress the sides of said springs, substan-A tially as and for 'the'purposes specified..

2. In a device'or'apparatus for finishing watch-mainsprin'gs or other analogous ribbons of metal, ',a pair of slides or diesfaced'with precious gems, jewels,- or other equivalent stones, hard substances, or material capable of receiving a uniform polish and surface, and

- arranged to compress the edges ot' said springs, 'substantially as and for the purposes specitied.

-.-l.3..lll..a.device..fo1. finishing watch-mainsprings or other analogous ribbons of metal, a pair of adjustable slides or dies faced with precious gems, jewels, or other `equivalent stones, hard substances, or material capable l of receiving a'unitorm polish and surface, and

arranged to compress the sides or faces of said springs, substantially as and for the purposes 4. In a device watch-mainsprings orother analogous ribbons of metal, a pair of adjustable slides or dies facedA with precious gems, jewels, or other equivalent stones, hard substances, or material capable of receiving a uniform polish and surface', and arranged to compress the edges of said springs', substantially as and for the purposes speciiied.

5. 1n an apparatus for finishing watch-main- Springs or other analogous ribbons of metal, a series of adjustable slides or dies faced with precious gems, jewels, or equivalentv stones,

' hard substances,or material capable of receiving a uniform polish and surface, and arranged to compress'the'sides or faces and edges of said springs at one operation, substantially as described. v

6. An apparatus for imparting uniformity of width and thickness to watch-mainsprings or analogous metal strips,cousistin'g of a seriesA of adjustableslidesor dies faced with precious stances, or material capable of receiving a uni form polish and surface, arranged to compress the 'sides and'edges of said spring, and means between the same,sub

'slides arranged in a suitable frame to com-y press said springs from opposite directions,

whereby uniformity in width and thickness may be imparted vto the latter, substantially in the manner described.

8. 'A device for finishing mainsprings" provided with a pair of adjustable jewel-faced slides or dies arranged in a given plane, and

a similar pair ofjewel-faced slides or dies arranged 4in a-plane perpendicular thereto, the

faces of one pair of said dies having parabaloidal or curved notches therein and those of the other being straight,lwhereby the edges of the spring may be rounded simultaneously with the parallel fiattening of its sides, substantially as described. l, l 1

9. In a iinishing device or watch-mainsprings or analogous metal strips, the combination of a -pair of longitudinally-adjustable `jewel-faced slides'and a laterally-adjustable sub-frame for one of said slides, whereby the faces may be made parallel with each other in use, substantially-as and for the'purposes specied. l 10. In a finishing device for watch-mainl springs or like metal strips, the combination of a pair of long zit'udinally-adj-ustable jewel.- faced slides, movable in opposite directions inthe same plane, and a trunnioned sub-frame for the reception of one of said slides, with means,- assetscrews, for the lateral adjustment .of itsjeweledend in tlie'arc of a circle, substantially as and for the purposes specified. 1l. In a device for rendering metal strips 4 y parallel and uniform in width andthickness, or apparatus for finishingthe combination, with a suitable frame, of the jewel-faced slides G G 'and C C', having screws, respectively,f0r vadjusting the same longitudinally, substantially as described.

12.111 a device for rendering'meta'l strips uniform in width and thickness, the combination of thejeweled-faced slides G G and C O', means, as screws, for adjusting the same longitudinally, and the trunnioned block B, with suitable screws for adjusting the same lateral l y, substautiallyasand for the purposes set forth; 13. The combinatiomvvith a suitable frame,I ofthelongitudinally-adj ustable slide F, having the jewel-laced slides G G, arranged in a groove therein, and jewel-faced slides (J C', each ofsaid slides,vrespectively, having one or more setroo IIO

screws, whereby thesame may be adjusted in the direction of its length, substantially as described. f

14. lIn a device for rendering metal strips uniform in width and thickness, the combination of the slides G G and C C', having their meeting ends providcdwith diesfformedfrom diamonds or other hard stones or materials, and adjusting-screws for moving said diesi'longibudinally, one of said screws controlling the uniform in width andtliiekness, the adjustable f1 dies, which compresstheflat sides of the metal jewel-faced slides G G C C', and a suitable reel xo strip, having an enlarged head with a graduor reels for drawing the metal strips between ated scale upon its periphery,whereby the eX- the same, substantially as described.

5 tent; of itsrotatiomwith reference toastation- MYRON YW. ELLIOTT.

ary indicator, may be shown, substantially as Witnesses: seb forthl D. H. FLETCHER,

15. 1n a. device for rendering metal strips M. M. GRIDLEY. 

